design-build Route 146 Reconstruction Project

Steere Engineering, as a subconsultant, is responsible for the design for the replacement of one bridge and rehabilitation of two bridges, ROW, and peer review of RIDEM permit submission and highway plans as part of the Skanska/Lynch Joint Venture Design/Build entity for the $196 million project. The Route 146 Reconstruction projects serves to address longstanding safety, congestion, and infrastructure issues throughout the 16-mile corridor linking Providence, Woonsocket and Worcester, Massachusetts.

The Spring Brook Bridge is a concrete rigid frame bridge carrying RI 146 NB over RI 146A in North Smithfield. The bridge was built in 1958 and reconstructed in 1987 including signage, concrete repairs and resetting the guardrails. The replacement serves to accommodate the reconfigured diverging diamond interchange. The 103-foot-long steel girder superstructure is supported on integral concrete end blocks on GRS-IBS abutments. Staged construction is required to maintain two lanes of traffic on Route 146 NB throughout construction.

The Reservoir Bridge is a concrete and stone masonry arch that carries Route 146 over the Crookfall Brook in Lincoln. Rehabilitation included concrete and stone masonry, segment joint, spandrel wall cap, and undermining repairs.

The Route 99 Bridge carries Route 99 SB over Route 146. Rehabilitation included strip seal joint reconstruction, isolated steel beam repairs, and substructure repairs.

Steere will be providing post-design construction support for structural design.

Location: Lincoln & North Smithfield, RI

Owner: Rhode Island Department of Transportation (RIDOT)

Timeline: Design Completed in 2023; Construction Completed in 2026 (Estimated)